water shamrock — bogbean ogbean n. a perennial plant of Europe and America ({Menyanthes trifoliata}) having racemes of white or purplish flowers and intensely bitter trifoliate leaves; often rooting at the water margin and spreading across the surface; called… … The Collaborative International Dictionary of English

water plant — noun a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth • Syn: ↑aquatic plant, ↑hydrophyte, ↑hydrophytic plant • Derivationally related forms: ↑hydrophytic (for … Useful english dictionary

marsh trefoil — bogbean ogbean n. a perennial plant of Europe and America ({Menyanthes trifoliata}) having racemes of white or purplish flowers and intensely bitter trifoliate leaves; often rooting at the water margin and spreading across the surface; called… … The Collaborative International Dictionary of English